/*
 * Copyright (c) 2021 Arm Limited.
 *
 * SPDX-License-Identifier: MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */
#ifdef ARM_COMPUTE_ENABLE_SVE

#include <cstddef>
#include <cstdint>

namespace arm_gemm {

void sve_interleaved_s8s32_dot_8x3VL_a64fx(
    const int8_t *Apanel, const int8_t *Bpanel,
    int32_t *Cpanel, int ablocks, int bblocks, int K) {

    struct KernelArgs {
        size_t bblocks = {};
        size_t K = {};
        const int8_t *Bpanel = {};
    } ka;

    ka.bblocks = bblocks;
    ka.K = (K/4) - 1;
    ka.Bpanel = Bpanel;

    __asm__ __volatile__(
      "ptrue p0.b\n"
      "1:"  // Height loop
      "ldr x22, [%x[args_ptr], %[offsetof_bblocks]]\n"
      "mov x21, %x[Apanel]\n"
      "ldr x20, [%x[args_ptr], %[offsetof_Bpanel]]\n"
      "2:"  // Width loop
      "ldr x19, [%x[args_ptr], %[offsetof_K]]\n"
      "mov %x[Apanel], x21\n"
      "cmp x19, #0x2\n"
      "mov z8.s, #0x0\n"
      "mov z9.s, #0x0\n"
      "ld1b { z0.b }, p0/Z, [x20]\n"
      "mov z10.s, #0x0\n"
      "mov z11.s, #0x0\n"
      "ld1b { z1.b }, p0/Z, [x20, #1, MUL VL]\n"
      "mov z12.s, #0x0\n"
      "mov z13.s, #0x0\n"
      "ld1b { z2.b }, p0/Z, [x20, #2, MUL VL]\n"
      "mov z14.s, #0x0\n"
      "mov z15.s, #0x0\n"
      "ld1rw { z3.s }, p0/Z, [%x[Apanel]]\n"
      "mov z16.s, #0x0\n"
      "mov z17.s, #0x0\n"
      "ld1rw { z4.s }, p0/Z, [%x[Apanel], #4]\n"
      "mov z18.s, #0x0\n"
      "mov z19.s, #0x0\n"
      "ld1rw { z5.s }, p0/Z, [%x[Apanel], #8]\n"
      "mov z20.s, #0x0\n"
      "mov z21.s, #0x0\n"
      "ld1rw { z6.s }, p0/Z, [%x[Apanel], #12]\n"
      "mov z22.s, #0x0\n"
      "mov z23.s, #0x0\n"
      "mov z24.s, #0x0\n"
      "mov z25.s, #0x0\n"
      "mov z26.s, #0x0\n"
      "mov z27.s, #0x0\n"
      "mov z28.s, #0x0\n"
      "mov z29.s, #0x0\n"
      "mov z30.s, #0x0\n"
      "mov z31.s, #0x0\n"
      "blt 4f\n"
      "3:"  // main loop head
      "sdot z8.s, z0.b, z3.b\n"
      "sdot z9.s, z1.b, z3.b\n"
      "sub x19, x19, #0x2\n"
      "sdot z10.s, z2.b, z3.b\n"
      "ld1rw { z3.s }, p0/Z, [%x[Apanel], #16]\n"
      "sdot z11.s, z0.b, z4.b\n"
      "sdot z12.s, z1.b, z4.b\n"
      "sdot z13.s, z2.b, z4.b\n"
      "ld1rw { z4.s }, p0/Z, [%x[Apanel], #20]\n"
      "sdot z14.s, z0.b, z5.b\n"
      "sdot z15.s, z1.b, z5.b\n"
      "cmp x19, #0x2\n"
      "sdot z16.s, z2.b, z5.b\n"
      "ld1rw { z5.s }, p0/Z, [%x[Apanel], #24]\n"
      "sdot z17.s, z0.b, z6.b\n"
      "sdot z18.s, z1.b, z6.b\n"
      "sdot z19.s, z2.b, z6.b\n"
      "ld1rw { z6.s }, p0/Z, [%x[Apanel], #28]\n"
      "sdot z20.s, z0.b, z3.b\n"
      "sdot z21.s, z1.b, z3.b\n"
      "sdot z22.s, z2.b, z3.b\n"
      "ld1rw { z3.s }, p0/Z, [%x[Apanel], #32]\n"
      "sdot z23.s, z0.b, z4.b\n"
      "sdot z24.s, z1.b, z4.b\n"
      "sdot z25.s, z2.b, z4.b\n"
      "ld1rw { z4.s }, p0/Z, [%x[Apanel], #36]\n"
      "sdot z26.s, z0.b, z5.b\n"
      "sdot z27.s, z1.b, z5.b\n"
      "sdot z28.s, z2.b, z5.b\n"
      "ld1rw { z5.s }, p0/Z, [%x[Apanel], #40]\n"
      "sdot z29.s, z0.b, z6.b\n"
      "ld1b { z0.b }, p0/Z, [x20, #3, MUL VL]\n"
      "sdot z30.s, z1.b, z6.b\n"
      "sdot z31.s, z2.b, z6.b\n"
      "ld1b { z1.b }, p0/Z, [x20, #4, MUL VL]\n"
      "ld1b { z2.b }, p0/Z, [x20, #5, MUL VL]\n"
      "sdot z8.s, z0.b, z3.b\n"
      "ld1rw { z6.s }, p0/Z, [%x[Apanel], #44]\n"
      "sdot z9.s, z1.b, z3.b\n"
      "sdot z10.s, z2.b, z3.b\n"
      "sdot z11.s, z0.b, z4.b\n"
      "ld1rw { z3.s }, p0/Z, [%x[Apanel], #48]\n"
      "sdot z12.s, z1.b, z4.b\n"
      "sdot z13.s, z2.b, z4.b\n"
      "ld1rw { z4.s }, p0/Z, [%x[Apanel], #52]\n"
      "sdot z14.s, z0.b, z5.b\n"
      "sdot z15.s, z1.b, z5.b\n"
      "addvl x20, x20, #6\n"
      "sdot z16.s, z2.b, z5.b\n"
      "ld1rw { z5.s }, p0/Z, [%x[Apanel], #56]\n"
      "sdot z17.s, z0.b, z6.b\n"
      "sdot z18.s, z1.b, z6.b\n"
      "sdot z19.s, z2.b, z6.b\n"
      "ld1rw { z6.s }, p0/Z, [%x[Apanel], #60]\n"
      "add %x[Apanel], %x[Apanel], #0x40\n"
      "sdot z20.s, z0.b, z3.b\n"
      "sdot z21.s, z1.b, z3.b\n"
      "sdot z22.s, z2.b, z3.b\n"
      "sdot z23.s, z0.b, z4.b\n"
      "ld1rw { z3.s }, p0/Z, [%x[Apanel]]\n"
      "sdot z24.s, z1.b, z4.b\n"
      "sdot z25.s, z2.b, z4.b\n"
      "ld1rw { z4.s }, p0/Z, [%x[Apanel], #4]\n"
      "sdot z26.s, z0.b, z5.b\n"
      "sdot z27.s, z1.b, z5.b\n"
      "sdot z28.s, z2.b, z5.b\n"
      "sdot z29.s, z0.b, z6.b\n"
      "ld1b { z0.b }, p0/Z, [x20]\n"
      "sdot z30.s, z1.b, z6.b\n"
      "sdot z31.s, z2.b, z6.b\n"
      "ld1b { z1.b }, p0/Z, [x20, #1, MUL VL]\n"
      "ld1b { z2.b }, p0/Z, [x20, #2, MUL VL]\n"
      "ld1rw { z5.s }, p0/Z, [%x[Apanel], #8]\n"
      "ld1rw { z6.s }, p0/Z, [%x[Apanel], #12]\n"
      "bge 3b\n"
      "4:"  // main loop skip
      "sdot z8.s, z0.b, z3.b\n"
      "sdot z9.s, z1.b, z3.b\n"
      "addvl x20, x20, #3\n"
      "sdot z10.s, z2.b, z3.b\n"
      "ld1rw { z3.s }, p0/Z, [%x[Apanel], #16]\n"
      "sdot z11.s, z0.b, z4.b\n"
      "sdot z12.s, z1.b, z4.b\n"
      "sdot z13.s, z2.b, z4.b\n"
      "ld1rw { z4.s }, p0/Z, [%x[Apanel], #20]\n"
      "sdot z14.s, z0.b, z5.b\n"
      "sdot z15.s, z1.b, z5.b\n"
      "sdot z16.s, z2.b, z5.b\n"
      "ld1rw { z5.s }, p0/Z, [%x[Apanel], #24]\n"
      "sdot z17.s, z0.b, z6.b\n"
      "sdot z18.s, z1.b, z6.b\n"
      "sdot z19.s, z2.b, z6.b\n"
      "ld1rw { z6.s }, p0/Z, [%x[Apanel], #28]\n"
      "sdot z20.s, z0.b, z3.b\n"
      "sdot z21.s, z1.b, z3.b\n"
      "add %x[Apanel], %x[Apanel], #0x20\n"
      "sdot z22.s, z2.b, z3.b\n"
      "sdot z23.s, z0.b, z4.b\n"
      "sdot z24.s, z1.b, z4.b\n"
      "sdot z25.s, z2.b, z4.b\n"
      "sdot z26.s, z0.b, z5.b\n"
      "sdot z27.s, z1.b, z5.b\n"
      "sdot z28.s, z2.b, z5.b\n"
      "sdot z29.s, z0.b, z6.b\n"
      "sdot z30.s, z1.b, z6.b\n"
      "sdot z31.s, z2.b, z6.b\n"
      "cbz x19, 5f\n"
      "ld1b { z0.b }, p0/Z, [x20]\n"
      "ld1b { z1.b }, p0/Z, [x20, #1, MUL VL]\n"
      "ld1b { z2.b }, p0/Z, [x20, #2, MUL VL]\n"
      "ld1rw { z3.s }, p0/Z, [%x[Apanel]]\n"
      "sdot z8.s, z0.b, z3.b\n"
      "ld1rw { z4.s }, p0/Z, [%x[Apanel], #4]\n"
      "ld1rw { z5.s }, p0/Z, [%x[Apanel], #8]\n"
      "sdot z9.s, z1.b, z3.b\n"
      "ld1rw { z6.s }, p0/Z, [%x[Apanel], #12]\n"
      "sdot z10.s, z2.b, z3.b\n"
      "sdot z11.s, z0.b, z4.b\n"
      "ld1rw { z3.s }, p0/Z, [%x[Apanel], #16]\n"
      "sdot z12.s, z1.b, z4.b\n"
      "sdot z13.s, z2.b, z4.b\n"
      "ld1rw { z4.s }, p0/Z, [%x[Apanel], #20]\n"
      "sdot z14.s, z0.b, z5.b\n"
      "sdot z15.s, z1.b, z5.b\n"
      "sdot z16.s, z2.b, z5.b\n"
      "sdot z17.s, z0.b, z6.b\n"
      "ld1rw { z5.s }, p0/Z, [%x[Apanel], #24]\n"
      "sdot z18.s, z1.b, z6.b\n"
      "sdot z19.s, z2.b, z6.b\n"
      "ld1rw { z6.s }, p0/Z, [%x[Apanel], #28]\n"
      "addvl x20, x20, #3\n"
      "sdot z20.s, z0.b, z3.b\n"
      "sdot z21.s, z1.b, z3.b\n"
      "add %x[Apanel], %x[Apanel], #0x20\n"
      "sdot z22.s, z2.b, z3.b\n"
      "sdot z23.s, z0.b, z4.b\n"
      "sdot z24.s, z1.b, z4.b\n"
      "sdot z25.s, z2.b, z4.b\n"
      "sdot z26.s, z0.b, z5.b\n"
      "sdot z27.s, z1.b, z5.b\n"
      "sdot z28.s, z2.b, z5.b\n"
      "sdot z29.s, z0.b, z6.b\n"
      "sdot z30.s, z1.b, z6.b\n"
      "sdot z31.s, z2.b, z6.b\n"
      "5:"  // multiply loop done
      "st1w { z8.s }, p0, [%x[Cpanel]]\n"
      "subs x22, x22, #0x1\n"
      "st1w { z9.s }, p0, [%x[Cpanel], #1, MUL VL]\n"
      "st1w { z10.s }, p0, [%x[Cpanel], #2, MUL VL]\n"
      "st1w { z11.s }, p0, [%x[Cpanel], #3, MUL VL]\n"
      "st1w { z12.s }, p0, [%x[Cpanel], #4, MUL VL]\n"
      "st1w { z13.s }, p0, [%x[Cpanel], #5, MUL VL]\n"
      "st1w { z14.s }, p0, [%x[Cpanel], #6, MUL VL]\n"
      "st1w { z15.s }, p0, [%x[Cpanel], #7, MUL VL]\n"
      "addvl %x[Cpanel], %x[Cpanel], #16\n"
      "st1w { z16.s }, p0, [%x[Cpanel], #-8, MUL VL]\n"
      "st1w { z17.s }, p0, [%x[Cpanel], #-7, MUL VL]\n"
      "st1w { z18.s }, p0, [%x[Cpanel], #-6, MUL VL]\n"
      "st1w { z19.s }, p0, [%x[Cpanel], #-5, MUL VL]\n"
      "st1w { z20.s }, p0, [%x[Cpanel], #-4, MUL VL]\n"
      "st1w { z21.s }, p0, [%x[Cpanel], #-3, MUL VL]\n"
      "st1w { z22.s }, p0, [%x[Cpanel], #-2, MUL VL]\n"
      "st1w { z23.s }, p0, [%x[Cpanel], #-1, MUL VL]\n"
      "st1w { z24.s }, p0, [%x[Cpanel]]\n"
      "st1w { z25.s }, p0, [%x[Cpanel], #1, MUL VL]\n"
      "st1w { z26.s }, p0, [%x[Cpanel], #2, MUL VL]\n"
      "st1w { z27.s }, p0, [%x[Cpanel], #3, MUL VL]\n"
      "st1w { z28.s }, p0, [%x[Cpanel], #4, MUL VL]\n"
      "st1w { z29.s }, p0, [%x[Cpanel], #5, MUL VL]\n"
      "st1w { z30.s }, p0, [%x[Cpanel], #6, MUL VL]\n"
      "st1w { z31.s }, p0, [%x[Cpanel], #7, MUL VL]\n"
      "addvl %x[Cpanel], %x[Cpanel], #8\n"
      "bgt 2b\n"
      "subs %x[ablocks], %x[ablocks], #0x1\n"
      "bne 1b\n"
      : [Apanel] "+&r" (Apanel), [Cpanel] "+&r" (Cpanel), [ablocks] "+&r" (ablocks)
      : [args_ptr] "r" (&ka), [offsetof_Bpanel] "I" (offsetof(KernelArgs, Bpanel)), [offsetof_K] "I" (offsetof(KernelArgs, K)), [offsetof_bblocks] "I" (offsetof(KernelArgs, bblocks))
      : "cc", "memory", "p0", "x19", "x20", "x21", "x22", "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15", "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23", "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31"
    );
}

} // namespace arm_gemm
#endif // ARM_COMPUTE_ENABLE_SVE
